n8n Workflow: Safe Gmail Scheduling with Gemini & Calendar

Instantly turns Gmail scheduling emails into confirmed time options—safely

This n8n workflow monitors your Gmail for meeting requests, uses Google Gemini with Google Calendar to verify availability, drafts a reply with three proposed time slots, places a transparent “HOLD” on your calendar, logs everything to Google Sheets, and alerts your team in Slack.

What this workflow does

• Polls Gmail every minute for unread emails with subject lines indicating a scheduling request.
• Enriches the email context with your working hours, timezone, default meeting duration, and your booking rules.
• Uses Google Gemini and Google Calendar tools to determine whether the email is truly a scheduling request, then lists existing events and checks availability to generate three verified meeting times.
• If it is a scheduling request, the workflow creates a draft reply in the original Gmail thread including the proposed options.
• Places a transparent “HOLD” event on Google Calendar for the first proposed slot and stores the proposed options and notes in the event description.
• Logs the request to Google Sheets and posts a summary to your Slack channel.
• If it is not a scheduling request, it marks the email as read.

Use cases

• Reducing back-and-forth for interview, demo, or customer meetings coming via email.
• Ensuring time options respect working hours and timezone rules without manual calendar checking.
• Keeping operations teams informed via Slack and maintaining an auditable request trail in Google Sheets.

Technical details

• Integrations/Nodes: Gmail, Google Calendar, Google Gemini (PaLM) API, Google Sheets, Slack, plus if, code, form, and switch logic.
• Setup steps: connect credentials for Gmail, Google Calendar, Google Gemini (PaLM) API, Google Sheets, and Slack; select the correct Google Calendar for event listing, availability checks, and HOLD event creation; update scheduling rules (working hours, timezone, default duration, and buffer/booking rules).